Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/70r16 vs 215/60r16 Tire Comparison Side By Side
  195/70-16 215/60-16 Difference
Diameter inches (mm) 26.75 (679.4) 26.16 (664.4) -0.59 (-15) -2.2%
Width inches (mm) 7.68 (195) 8.46 (215) 0.79 (20) 10.3%
Circum. inches (mm) 84.03 (2134.4) 82.18 (2087.27) -1.86 (-47.12) -2.2%
Sidewall Height inches (mm) 5.37 (136.5) 5.08 (129) -0.3 (-7.5) -5.5%
Revolutions per mile (km) 754 (468.52) 771.03 (479.09) 17.02 (10.58) 2.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.56 mph (31.48 km/h)
25 mph (40.23 km/h)24.45 mph (39.35 km/h)
30 mph (48.28 km/h)29.34 mph (47.21 km/h)
35 mph (56.33 km/h)34.23 mph (55.08 km/h)
40 mph (64.37 km/h)39.12 mph (62.95 km/h)
45 mph (72.42 km/h)44.01 mph (70.82 km/h)
50 mph (80.47 km/h)48.9 mph (78.69 km/h)
55 mph (88.51 km/h)53.79 mph (86.56 km/h)
60 mph (96.56 km/h)58.68 mph (94.43 km/h)
65 mph (104.61 km/h)63.56 mph (102.3 km/h)
70 mph (112.65 km/h)68.45 mph (110.17 km/h)
75 mph (120.7 km/h)73.34 mph (118.04 km/h)
80 mph (128.75 km/h)78.23 mph (125.91 km/h)
85 mph (136.79 km/h)83.12 mph (133.77 km/h)
90 mph (144.84 km/h)88.01 mph (141.64 km/h)
95 mph (152.89 km/h)92.9 mph (149.51 km/h)
100 mph (160.93 km/h)97.79 mph (157.38 km/h)

Gear Ratio / RPMs for New Tire (@ 65 mph)
2.35 2.73 2.94 3.07 3.21 3.31 3.42 3.55 3.73 3.91 4.11 4.27 4.56 4.88 5.13 5.29 5.38 5.71 6.17 7.17
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